Bookmarks featuring the S'COOL project - Student Cloud Observations On-Line - are presented here in both teacher's and student's versions. The teacher's version includes a brief introduction to the CERES satellite instrument on the front, and a...(View More) short description of the role of student cloud observers on the back. The student's version, which is also available in Spanish and French, describes cloud formation on one side and provides a very brief introduction to S'COOL and CERES on the other. S'COOL engages students in making and reporting ground truth observations of clouds then comparing those observations with data from the CERES satellite instrument.(View Less)